Insulating-wall.



' PATENTED AUG. 25, 1908.

G. W'ALZEL.

INSULATING WALL.

APPLICATION FILED JULY 17,1907.

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/ odww I GREGOB WALZEL, OF NEW YORK, Y.

INSULATINGNIALL;

fad. 896,786.

' Specification of Letters Patent.

Patented Aug. 25, 1908..

Application filed. July 17, 1907. Serial No. 384,244.

. To all whom it may concern:

' atmospheric air a the following is a specification.

'struction of the cells is such that the interlocked with'each other at their si es as Be it known that I, GREGOR WALZEL, a citizen of the United States, residing at New York city, (Manhattan,) county and State of New York,.have invented new and useful Improvements in Insulating-Walls, of which This. invention relates to a novel construction of insulating walls or partitions for refri erators, cold storage chambers, e-tc.gjby whic the transmissionof the atmospheric temperature is effectively checked.

In the accompanying drawing: Figure 1 is a vertical sectional view of my improved insulating wall,-and Figs. 2 and 3 are detail views of the female and male vacuum cells respectively.

The wall is composed essentially of a number of vacuum cells 0,, c laid in courses. These cells, which are referably made of glass, are hollow, and t e air is exhausted therefrom" in' suitable manner.- The conare well as at the top and bottom, so that they are self-sustaining and that adirect flow of ong the joints is prevented.

' 'lo efiect this result, each course is composed of female cells'c alternating withmale cells 0,. Cells 0,, are provided'at each upright,

edge with a vertical groove g, adapted for the reception of a tongue t, formed on the correspondiug vertical edge of the adj oining male cell c,j. Furthermore, each cell 0,, 0,, has a concavity or socket cl, at its bottom and a corresponding projection or bulge 1', at its top, so that each cell will be interlocked with the adjoining cells of the same course and also with the vertically alined cells of the superposed courses.

In constructingthe wall, the cells, laid in the manner described, are faced by a wire screen to, which is secured in place by a system-of vertical and horizontal bars a, b. As the blocks are not connected by mortar at their joints, the screen and bars constitute additional means for holding the blocks against displacement. The ceiling and floor may also be composed of the interlocking vacuum cells, as indicated by the upper and lower reference letters 0,, Fig. 1.

It will be seen that my improved wall diminishes, to a considerable extent, the trans- 1 mission of heat by conduction, so that an efficient insulation is obtained.

.The invention may be used either for the construction of a wall completeoin itself, or for lining a wall composed of brick or other material.

- I claim:

An insulating wall, comprising superposed rows of vacuum cells having interlocking tongued and grooved sides, and interlocking socketed and bulged tops, substantially as specified.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

GREGOR WALZEL. Witnesses;

CARL HUBER,

ROBERT LINDNER. 

